Lazy Load Room Summaries: Milestone 0

MatrixSDK/Background/MXBackgroundCryptoStore.m

@@ -312,6 +312,11 @@ + (void)deleteStoreWithCredentials:(MXCredentials*)credentials
     NSAssert(NO, @"This method should be useless in the context of MXBackgroundCryptoStore");
 }
 
++ (void)deleteAllStores
+{
+    NSAssert(NO, @"This method should be useless in the context of MXBackgroundCryptoStore");
+}
+
 + (void)deleteReadonlyStoreWithCredentials:(MXCredentials*)credentials
 {
     NSAssert(NO, @"This method should be useless in the context of MXBackgroundCryptoStore");

MatrixSDK/Background/MXBackgroundStore.swift

@@ -71,11 +71,6 @@ class MXBackgroundStore: NSObject, MXStore {
         fileStore.state(ofRoom: roomId, success: success, failure: failure)
     }
 
-    //  Fetch real soom summary
-    func summary(ofRoom roomId: String) -> MXRoomSummary? {
-        return fileStore.summary(ofRoom: roomId)
-    }
-
     //  Fetch real room account data
     func accountData(ofRoom roomId: String) -> MXRoomAccountData? {
         return fileStore.accountData(ofRoom: roomId)
@@ -244,4 +239,35 @@ class MXBackgroundStore: NSObject, MXStore {
         }
     }
 
+    func storeOutgoingMessage(forRoom roomId: String, outgoingMessage: MXEvent) {
+
+    }
+
+    func removeAllOutgoingMessages(fromRoom roomId: String) {
+
+    }
+
+    func removeOutgoingMessage(fromRoom roomId: String, outgoingMessage outgoingMessageEventId: String) {
+
+    }
+
+    func outgoingMessages(inRoom roomId: String) -> [MXEvent]? {
+        return []
+    }
+
+    //  MARK: - MXRoomSummaryStore
+
+    var rooms: [String] {
+        return []
+    }
+
+    func storeSummary(forRoom roomId: String, summary: MXRoomSummaryProtocol) {
+
+    }
+
+    //  Fetch real soom summary
+    func summary(ofRoom roomId: String) -> MXRoomSummaryProtocol? {
+        return fileStore.summary(ofRoom: roomId)
+    }
+
 }

MatrixSDK/Background/MXBackgroundSyncService.swift

@@ -178,8 +178,9 @@ public enum MXBackgroundSyncServiceError: Error {
     /// Fetch the summary for the given room identifier.
     /// - Parameter roomId: The room identifier to fetch.
     /// - Returns: Summary of room.
-    public func roomSummary(forRoomId roomId: String) -> MXRoomSummary? {
-        return syncResponseStoreManager.roomSummary(forRoomId: roomId, using: store.summary?(ofRoom: roomId))
+    public func roomSummary(forRoomId roomId: String) -> MXRoomSummaryProtocol? {
+        let summary = store.summary(ofRoom: roomId)
+        return syncResponseStoreManager.roomSummary(forRoomId: roomId, using: summary)
     }
 
     /// Fetch push rule matching an event.

MatrixSDK/Background/Store/MXSyncResponseStoreManager.swift

@@ -227,29 +227,30 @@ public class MXSyncResponseStoreManager: NSObject {
 
     /// Fetch room summary for an invited room. Just uses the data in syncResponse to guess the room display name
     /// - Parameter roomId: Room identifier to be fetched
-    /// - Parameter summary: A room summary (if exists) which user had before a sync response
-    public func roomSummary(forRoomId roomId: String, using summary: MXRoomSummary?) -> MXRoomSummary? {
-        guard let summary = summary ?? MXRoomSummary(roomId: roomId, andMatrixSession: nil) else {
+    /// - Parameter model: A room summary model (if exists) which user had before a sync response
+    public func roomSummary(forRoomId roomId: String, using model: MXRoomSummaryProtocol?) -> MXRoomSummaryProtocol? {
+        let summary: MXRoomSummary?
+
+        if let model = model {
+            summary = MXRoomSummary(summaryModel: model)
+        } else {
+            summary = MXRoomSummary(roomId: roomId, andMatrixSession: nil)
+        }
+
+        guard var result = summary else {
             return nil
         }
 
+        //  update summary with each sync response
         for id in syncResponseStore.syncResponseIds.reversed() {
-            let summary = autoreleasepool { () -> MXRoomSummary? in
-                guard let response = try? syncResponseStore.syncResponse(withId: id) else {
-                    return nil
+            autoreleasepool {
+                if let response = try? syncResponseStore.syncResponse(withId: id) {
+                    result = roomSummary(forRoomId: roomId, using: result, inSyncResponse: response)
                 }
-
-                return roomSummary(forRoomId: roomId, using: summary, inSyncResponse: response)
-            }
-
-            if let summary = summary {
-                return summary
             }
         }
 
-        MXLog.debug("[MXSyncResponseStoreManager] roomSummary: Not found for room \(roomId)")
-
-        return nil
+        return result
     }
 
     //  MARK: - Private
@@ -306,7 +307,7 @@ public class MXSyncResponseStoreManager: NSObject {
         return MXSyncResponse(fromJSON: dictionary as? [AnyHashable : Any])
     }
 
-    private func roomSummary(forRoomId roomId: String, using summary: MXRoomSummary, inSyncResponse response: MXCachedSyncResponse) -> MXRoomSummary? {
+    private func roomSummary(forRoomId roomId: String, using summary: MXRoomSummary, inSyncResponse response: MXCachedSyncResponse) -> MXRoomSummary {
         var eventsToProcess: [MXEvent] = []
 
         if let invitedRoomSync = response.syncResponse.rooms?.invite?[roomId] {

MatrixSDK/Contrib/Swift/Data/MXRoomState.swift

@@ -34,15 +34,6 @@ extension MXRoomState {
         return MXRoomGuestAccess(identifier: self.__guestAccess)
     }
 
-
-    /// The membership state of the logged in user for this room
-    ///
-    /// If the membership is `invite`, the room state contains few information.
-    /// Join the room with [MXRoom join] to get full information about the room.
-    public var membership: MXMembership {
-        return MXMembership(identifier: self.__membership)
-    }
-
     /**
      Return the state events with the given type.
      

MatrixSDK/Contrib/Swift/JSONModels/MXEvent.swift

@@ -163,24 +163,3 @@ public enum MXMessageType: Equatable, Hashable {
         self = messages.first(where: { $0.identifier == identifier }) ?? .custom(identifier)
     }
 }
-
-
-/// Membership definitions
-public enum MXMembership: Equatable, Hashable {
-    case unknown, invite, join, leave, ban
-
-    public var identifier: __MXMembership {
-        switch self {
-        case .unknown: return __MXMembershipUnknown
-        case .invite: return __MXMembershipInvite
-        case .join: return __MXMembershipJoin
-        case .leave: return __MXMembershipLeave
-        case .ban: return __MXMembershipBan
-        }
-    }
-
-    public init(identifier: __MXMembership) {
-        let possibilities: [MXMembership] = [.unknown, .invite, .join, .leave, .ban]
-        self = possibilities.first(where: { $0.identifier == identifier }) ?? .unknown
-    }
-}

MatrixSDK/Crypto/Data/Store/MXCryptoStore.h

@@ -62,6 +62,11 @@
  */
 + (void)deleteStoreWithCredentials:(MXCredentials*)credentials;
 
+/**
+ Delete crypto stores for all users. Implementations should also attempt to delete read-only stores.
+ */
++ (void)deleteAllStores;
+
 /**
  Delete the read-only crypto store for the passed credentials.
 

MatrixSDK/Crypto/Data/Store/MXRealmCryptoStore/MXRealmCryptoStore.m

@@ -370,6 +370,11 @@ + (void)deleteStoreWithCredentials:(MXCredentials*)credentials
     [self _deleteStoreWithCredentials:credentials readOnly:YES];
 }
 
++ (void)deleteAllStores
+{
+    [[NSFileManager defaultManager] removeItemAtURL:[self storeFolderURL] error:nil];
+}
+
 + (void)deleteReadonlyStoreWithCredentials:(MXCredentials *)credentials
 {
     [self _deleteStoreWithCredentials:credentials readOnly:YES];
@@ -1633,7 +1638,14 @@ -(void)setCryptoVersion:(MXCryptoVersion)cryptoVersion
  */
 + (nullable RLMRealm*)realmForUser:(NSString*)userId andDevice:(NSString*)deviceId readOnly:(BOOL)readOnly
 {
-    if (readOnly)
+    // Each user has its own db file.
+    // Else, it can lead to issue with primary keys.
+    // Ex: if 2 users are is the same encrypted room, [self storeAlgorithmForRoom]
+    // will be called twice for the same room id which breaks the uniqueness of the
+    // primary key (roomId) for this table.
+    NSURL *realmFileURL = [self realmFileURLForUserWithUserId:userId andDevice:deviceId];
+
+    if (readOnly && [[NSFileManager defaultManager] fileExistsAtPath:realmFileURL.path])
     {
         //  just open Realm once in writable mode to trigger migrations
         static dispatch_once_t onceToken;
@@ -1645,13 +1657,6 @@ + (nullable RLMRealm*)realmForUser:(NSString*)userId andDevice:(NSString*)device
     }
 
     RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
-
-    // Each user has its own db file.
-    // Else, it can lead to issue with primary keys.
-    // Ex: if 2 users are is the same encrypted room, [self storeAlgorithmForRoom]
-    // will be called twice for the same room id which breaks the uniqueness of the
-    // primary key (roomId) for this table.
-    NSURL *realmFileURL = [self realmFileURLForUserWithUserId:userId andDevice:deviceId];
     [self ensurePathExistenceForFileAtFileURL:realmFileURL];
     config.fileURL = realmFileURL;
 
@@ -1775,36 +1780,32 @@ + (nullable RLMRealm*)realmForUser:(NSString*)userId andDevice:(NSString*)device
     return realm;
 }
 
-// Return the realm db file to use for a given user and device
-+ (NSURL*)realmFileURLForUserWithUserId:(NSString*)userId andDevice:(NSString*)deviceId
++ (NSURL*)storeFolderURL
 {
-    NSURL *realmFileURL;
-
-    RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
-
-    NSURL *defaultRealmPathURL = config.fileURL.URLByDeletingLastPathComponent;
-
-    // Default db file URL: use the default directory, but replace the filename with the userId.
-    NSString *realmFile = [self realmFileNameWithUserId:userId deviceId:deviceId];
-    NSURL *defaultRealmFileURL = [[defaultRealmPathURL URLByAppendingPathComponent:realmFile]
-                                  URLByAppendingPathExtension:@"realm"];
-
     // Check for a potential application group id.
     NSString *applicationGroupIdentifier = [MXSDKOptions sharedInstance].applicationGroupIdentifier;
     if (applicationGroupIdentifier)
     {
         // Use the shared db file URL.
         NSURL *sharedContainerURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:applicationGroupIdentifier];
-        NSURL *realmFileFolderURL = [sharedContainerURL URLByAppendingPathComponent:kMXRealmCryptoStoreFolder];
-        realmFileURL = [[realmFileFolderURL URLByAppendingPathComponent:realmFile] URLByAppendingPathExtension:@"realm"];
+        return [sharedContainerURL URLByAppendingPathComponent:kMXRealmCryptoStoreFolder];
     }
     else
     {
         // Use the default URL
-        realmFileURL = defaultRealmFileURL;
+        NSURL *defaultRealmPathURL = [RLMRealmConfiguration defaultConfiguration].fileURL.URLByDeletingLastPathComponent;
+        return [defaultRealmPathURL URLByAppendingPathComponent:kMXRealmCryptoStoreFolder];
     }
+}
+
+// Return the realm db file to use for a given user and device
++ (NSURL*)realmFileURLForUserWithUserId:(NSString*)userId andDevice:(NSString*)deviceId
+{
+    // Default db file URL: use the default directory, but replace the filename with the userId.
+    NSString *fileName = [self realmFileNameWithUserId:userId
+                                              deviceId:deviceId];
 
-    return realmFileURL;
+    return [[[self storeFolderURL] URLByAppendingPathComponent:fileName] URLByAppendingPathExtension:@"realm"];
 }
 
 /**